Metallic block for detecting force operating on metallic V-belt and system for detection of operating force using the same

A detection system for detecting a force operating on a metallic V-belt including endless belt-like supporting straps and a multiplicity of metallic blocks supported along said straps and passing around a driving pulley and a driven pulley,

• at least one of said multiplicity of metallic blocks comprising:
• a notch formed in a part thereof;
• and
• a strain gauge attached to said notch;
• a part of said multiplicity of metallic blocks except said at least one of metallic blocks having a telemeter, a battery for driving said telemeter, and a radio transmitting antenna, respectively, loaded thereon, said gauge being connected via signal lines to said telemeter, battery and radio transmitting antenna,
• said system further comprising a receiver placed in the vicinity of said metallic V-belt and intended to receive detection values of said strain gauges transmitted in the form of radio signals from said telemeter by way of said transmitting antenna so that an external force to be exerted on said metallic block can be detected based on thus received detection values.